Physics · Electrical Machines
Consider the following statements about the EMF method of finding voltage regulation in an alternator and select the most appropriate option. a. Both open-circuit and short-circuit data are essential for applying this method. b. The largest value of synchronous impedance obtained from the largest short-circuit current is considered. c. In a practical machine, the value of synchronous impedance is a constant. d. The voltage regulation calculated by the EMF method is much higher than the actual value of regulation.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both a and d are true✓
- 2Both b and d are true
- 3All a, b, c, and d are true
- 4Only d is true
Correct answer
Both a and d are true
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